Milking-machine



H. W. RINTELMAN.

MILKING MACHINE.

APPLICATION FILED APR. 21. 1920.

Patented June 7, 1921.

4 SHEETS-SHEET 1- H. W. RIN] ELMAN.

MILKING MACHINE.

APPLICATION FlLED APR. 21, 1920.

1,380, 19 Patented June 7, 1921 Z Z fa /man.

H. W. RINTELMAN.

MILKING MACHINE.

APPLICATION man APR.21. 1920.

4 SHEETSSHEET'3.

E! E mail H. W. RINTELMAN.

MILKING MACHINE. APPLICATION FILED APR. 21. 1920.

1,380,499. v Patented June 7; 1921.

4 SHEETSSHEET 4.

I 20 4-9 Z0 A i at "UNrrn stares TEN T OFFICE HENRY VT; RINTELMAN, 0FCOTTONWOOD,SOUTH- DAKOTA.,

MILKL'NG-MAGHINE.

To all whom it may concern 'Be it known that I, HENRY W. RINTEL-Y MAN acitizen of the United States, residing dottonwoochin the county ofJackson and State of South Dakota, have invented certain new and usefulImprovements 7 in Milking-Machines; and I do. hereby declarethefollowing to be a full, clear, and exact description of theinvention, such as will enable othersskilled in the art to which itappertains to make and use the same.

This invention relates to new and useful improvements in milkingmachines, and has for its primary ob ect the provlsion of a device ofthe above stated character, which may be manually operated. therebyobviating the use of artificial power for operating,

thus reducing the cost of operation and the initialexpense ofinstallation.

Another object of this invention is the provision of a device of the.stated fch'arac; tergwhich maybe easily and quickly transferred from onecowxto another and which of such a construction and size that the samemay be attached and supported by a milk pail; thus a person supportingthe pail in the usual manner under a. cow. also supports the machineleaving the hands free to operate said machine. Y I i A. further objectof this invention is the provision of nipples to receive the teats ofthe cow which are adapted to be contracted line 9&9 off'Fig'. '1,illustratingthe means of 'supportlng the nipple and squeezing l ends inthe direction. of their free. ends to nipplesoperated by a single crankhandle cause theteats to receive the usual milking pressure thereon.

A further ob'ect of this invention is the provision of ,an actuatingmeans for the and is adapted tofalternately squeeze the nipples-'of eachpair thereby rendering the 7 same. effect on the cowas when milkedmanually ,withoututhe disadvantage or annoyance of tired or crampedhands.

' A still further objectof this invention is the provision of a milkingmachine of the. above statedcharacter whichshallbe simple, durable andefiicient, and which may Specification of Letters Patent. Patented June"7, 1921 Application filed April 21,1920. .;Seria1:1 1'o.:375,627. i

For a complete understanding of my in- I vention reference is' to be hadto the following description andaccompanying draw- 1ngs,in whichzr a vFigure l is a sideelevation, illustratingfa milking machine constructedin accordance with my invention and. showing the same supported by amilkpail, I i f Fig. 2,. is a longitudinal sectional Viewillustratingthesame,- t

Fig. 3 is a transverse sectional View taken on theline of Fig. 1." 1

Fig. 4 is similar View taken on line 4% ofFig.2, i v Fig. 5 is a topplan vii w,'illustrating the device with alpair. of the teatnipples'removed of the nipples, 7, t r

Fig. 7 is a vertical sectional view illustrating the same, l 7

11g. 8 is atop plan view illustrating the,

same, I V

' Fig. 9 is a detailed sectional viewtaken on plate, r Fig. 1 O is afragmentary viewof the easing having the nipple removed,

V Fig. .11. is a perspective view illustrating one of the supports, Fig,12 is a similar shafts, 1

. Fig. 6 is' a side elevation, illustrating one,

view of one of the cam Fig. 13 is a similar view illustrating onebottom, side'and end walls 2, 3,4, and 5 respectively. The side walls 4are each provided with a pair ofrelatively spaced and verticallydisposed indentations '01 recesses 6 which are substantially"semicircular in cross section. The recesses 6 are shaped support 12.

formed by bending the side walls inwardly and have located thereinnipples 7 that project slightly beyond the ends of said-recesses 6 andreceive the tea-ts of .a cow. Each of the nipples 7 include a taperedtubular body 8 terminating at its lower end in a reduced neck ornozzle 9and has formed on its upper end a semi-circular flange 10. Approximatelyone-half of the body 8 is confined within the recesses6 of the casing 1and the ends of the flange 10 terminate in engagement with the side wallt. The um derface of the flange 10 is concaved, asillustrated. at 11, toenga e a substantially U ach of the nipples 7 is provided with a support12 that has its leg portions 13 screw-threaded and passed throughopenings in the side walls 4 adja cent the top wall 2 and have mountedthere on coiled springs 14L which bear against the inner faces of theside walls, and nuts 15 turned on the ends of said leg'portion's 13,providing a construction which will permit adjustment of the'nipple to acows teat and also obviate any danger of placing too much pressure onthe teat. Each of the bodies 8 of thenipples 7 have formed therein vertically disposed raised portions 16 adapted to form cushions fortheteat, and the nipples are constructed from rubber or any other materialsuitable for the purpose which is capable'ofl being squeezed orcontracted. The. cushions or raised portions 16 are adapted to resemblethefleshy or pad portions ofapersons fingers and .to act as the same onthe cows teat. Y Y

Squeezing plates]: 17 are secured to the supports 12 and engage theexposed portions of the nipples and are curved throughout their lengthto conform to the contour of.

said nipples, and haveformedupo'n their upper ends curved ears orflanges 18" that hook over the bight portions of the sup-- ports 12 [andunder the'fianges 10 which 7 flanges prevent the ears 18" from becomingaccidentally detached from the supports but permitthe plates 17 to hingethereon. The plates 17 extend the full length of the bodies. 8 of thenipples7, so that the. nozzles 9 thereof depend below the casing 1 andsaid plates 17 so that the milk extracted from the cow by squeezing ofthe teats by the nipples and squeezing plate, will drain downwardly andbe caught by an ordinary pail 19 dis posed under, .tl1e.casing1, andwhich is adapted to support the casing 1 through the medium of hangers20.

' An operating shaft 21 is journaled in dle 23; A shaft 241 is journaledin'bearings through the shafts 21andf24 for securing the gears to theirrespeotiveshafts whereby upon rotation of the crank handle 23 the shaftswill be rotated in opposite directions. The shafts 21 and 24 areprevented from having endwisemovement by collars 80 which are secured tosaid shafts by pins 31 extending therethrough and through the reg.

spective shafts."

Pairs of spaced cams 32 are secured to the shafts 21 and 2 1, and haveextended hubs 38 provided with openings to 'receivepins' 34k that extendthrough the respective shafts for causing the cams to rotate with saidshafts. Thecamshave concaved or grooved peripheries and are engagedbyeccentric the squeezing platestoward and awayfrom. the nipples 7.The-cams 32 are so arranged that one nipple of eachpair willbe squeezedwhile the other nipple will be allowedexpand or return to its initialposition thus causing alternating milking of the teats of the cow. It isalso'to be noted that the squeezing of the'nipples by the squeezingplates will be in a gradual downward direction from their upper endsowing tothe fact that the upper ends of thesqueezing plates are hingedin close proximity to the nipples and never move far from said nipples,and

as the; squeezingplates start to squeeze the nlpples, the upperendsthereof-are the first thereof, and as the squeezing plates release thenipples, the milk again flows into the teats ready for the next squeezeor milking pressure'on the teats.

If desired the cam shafts 36 may beconstructed of a heavy gage wire andthe strap portions '35 may saidshafts by bending the wire. hields39 arepivoted to the end walls of the casing '1 and are adapted to overlie theends of the shafts 21 and 2a or their respectivebearings and areprovided with hooks 40 adapted to be ,formed inte ral with engagekeepers. 1-1 to prevent said hooks i from accidental movement,but willpermit Lasso-n99 them to be swung on their pivioftswhendethe milkdraining from the nipples 9 will flow directly into the bucket. I

siring to oil or lubricate the l-bearings. r

The top "and bottom :walls 2 and 3 of the casing, are provided withslotszto'form hand openings and which are closed by removable slides 01'covers 43. Guide-ways 4A are formed along the edges of the.slots'toslidably receive the covers 43 fByremoving either of. thecovers-accesslto: theninterior of the casing may readily be had andwhich is desirable in some instances for adjusting the supports 12 so asto permit the nipples to be applied to teats of different sizes.

Each of the supports 20 are constructed from a single length of wirewhich is first bent upon itself toform a handle 45 that has its endsbent into gripping portions 46 adapted to fit over the edge of the paill9 and then are bent upwardly and inwardly in a plane with the handle 45and then horizontally to form parallel attaching arms 47. The attachingarms 47 are slidablyrec'eived within brackets 48 secured to the bottomwall 3, and have frictional contact with said brackets providing a meanswhereby the support can be adjusted to various distances from the end ofthe casing 1, or in other words to provide supports for each end of thecasing that can be adjusted to fit milk pails of different sizes andwhich. will support the casing directly over the -milk pail so thatduring the milking of the cow From the foregoing description taken inconnection with the accompanying drawings,it will be noted that amilkingmachine has been provided which is simple in construction and operationand which can be easily carried by a person from one place to anotherand also that thedevice may be readily applied and: supported by a milkpail, so that when a person sits to assume the process of milking withthe pail between the knees, the'casing is disposed in such a positionthat the cows teats can be readily V Having thus described my inventionwhat I claim is:

1. A milkingmachlne comprising a casring, means'supporting and attachingthe casing in spaced relation and over a pail,

nipples detachably secured to said casing and adapted toreceive alcowsteats, and means forsqueezlng said nipples.

a 2.' A milking machine comprising a cas- 7 ing having recesses, nipplesin said recesses,

supportsziengaging said nipples and adju-stsaid nipples and adjustablyand yieldably connected to the casing, squeezing elements hinged to saidsupports and engaging the nipples, and means for actuating the squeezingelements.

e. A milking machine comprising a casing having recesses, elasticnipples partially con fined in said recesses, flanges formed on saidnipples, supports underlying said flanges and adjustably and yieldablysecured to the casing, squeezing means carried by said supports andengaging the nipples, and means for actuatmg the squeezing means.

,5. A milking machine comprising a casing having recesses, elasticnipples partially confined in said recesses, sem1-c1rcular flangesformed on the upper ends of the nipples,

substantially U-shaped supports engaging thenipples under the flangesand adjustably and yieldably secured to the casing, squeez ing meanscarried by said supports, and means for actuating said squeezing means.

6. A milking machine comprising a carsing having recesses, elasticnipples located in said recesses, flanges formed on the upper ends ofsaid nipples, substantially U-shaped sup-ports engaging the nipplesunder the flanges and having their legs screw-threaded and extendedthrough the casing, springs mounted on said legs, nuts: turned on theends of said legs, squeezing means carried I by said supports, and meansfor actuating the s ueezing means.

7. milking machine comprising a casing having recesses, elastic nipplespartially confined in said recesses, supports securing the nipples tosaid casing, plates hinged to 7 said supports and curved to conform tothe contour of the nipples and extending lengthwise of the latter, andmeans connected to said plates for causing said plates to squeeze thenipples. I

8. A milking machine comprising a casing,nipples carried by said casing,squeezing plates associated with the'nipples, shafts journaled in'saidcasing, means connecting the shafts together, cams secured to saidshafts, cam shafts connecting the cams to the squeezing plates, and acrank for rotat ing one of the shafts.

9. A milking machine comprising a cas" ing, nipples carried bysaidcasing, means for squeezing said nipples, a pair of sup form attachingarms that are adjustably 10 ports adjustably secured to'said casing andsecured to. the casing; I I a, each including a single length of Wirebent In testimony whereof I'aflix my signature upon itself to form ahandle, the ends of in presence of-two Witnesses.

said handle being bent to form clamps adapted to engage the edge of apail, the I HENRY RINTELMAN' 1' ends of said clamps being extended up-Witnesses: I Wardly and inward y in a plane with the SAM W. DAVIS,

handle and then disposed horizontally to HARRY 'S. COCHRANU

